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Hyliion is seeking a highly skilled CNC Engineer Technician (Prototyping & Tooling Desing) with strong expertise in prototyping, tooling design, and precision machining. This role blends hands-on CNC machine operation with creative problem-solving in tooling development, fixturing, and rapid iteration. You will work closely with engineering teams to translate early-stage concepts into high-quality prototype parts and production-ready tooling solutions. This is an ideal role for a machinist who enjoys building unique parts, improving designs, and collaborating directly with engineers and manufacturing teams.
Job Responsibility:
Program, set up, and operate CNC mills, lathes, wire EDM to produce precision prototype components
Interpret engineering drawings, 3D models, and design intent to create one-off or low-volume parts
Select appropriate tools, speeds, feeds, and machining strategies to optimize quality and efficiency
Perform quick-turn machining on evolving designs requiring adaptability and engineering collaboration
Design and manufacture custom tooling, fixtures, jigs, and work holding solutions to support both prototype and limited production needs
Collaborate with manufacturing and design engineers to develop and refine tooling concepts
Implement improvements to tooling ergonomics, repeatability, accuracy, and safety
Create and edit CNC programs using CAD/CAM software (Fusion 360, Mastercam, NX, or similar)
Import and manipulate 3D CAD files to generate toolpaths
Verify toolpaths using simulation to prevent collisions and ensure manufacturability
Perform in-process inspection and final part verification using calipers, micrometers, height gauges, CMM, or other precision tools
Maintain documentation for prototype runs, tooling revisions, and machining parameters
Support DFM (Design for Manufacturability) feedback for engineering teams
Maintain a clean, organized, and safety-focused work environment
Monitor machine condition and coordinate maintenance as needed
Recommend process improvements, equipment upgrades, and tooling enhancements
Contribute to standardizing prototyping workflows and machining best practices
Requirements:
Associate or bachelor’s degree in Mechanical, Manufacturing, Industrial Engineering, Machine Technology, Advanced Manufacturing, or a related technical field required
5+ years of CNC machining experience (mills, lathes, or 5-axis preferred) after completing your degree
Strong background in prototype machining and quick-turn environments
Experience designing and machining custom tools, fixtures, and workholding
Proficiency with CAD/CAM software for toolpath creation
Ability to read engineering drawings, GD&T, and engineering documentation
Strong understanding of machining materials (aluminum, steels, plastics, etc.)
Nice to have:
HAAS or FANUC CNC certifications would be good as well but preferred
Experience supporting R&D or new product development teams
Familiarity with CNC machine maintenance and troubleshooting
Experience with metrology tools and/or CMM inspection
Welding, fabrication, or manual machine experience
Ability to collaborate directly with mechanical engineers on manufacturability improvements
What we offer:
Medical Plans, with PPO or HDHP options
Dental Plans, with buy-up option
Vision Plan
Life Insurance and Accidental Death & Dismemberment Plans, with buy-up options